What is the meaning of Vertigo?

A sensation of whirling and loss of balance, caused by looking down from a great height or by disease affecting the inner ear.

A disordered or imbalanced state of mind or things analogous to physical vertigo; mental giddiness or dizziness.

The act of whirling round and round; rapid rotation.

A snail of the genus Vertigo.

vertigo

gyration, giddiness, dizziness

Source: wiktionary.org